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Ergonomic Assessment of a Lower-Limb Exoskeleton through Electromyography and Anybody Modeling System

Author

Listed:
  • Yong-Ku Kong

    (Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Kyeong-Hee Choi

    (Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Min-Uk Cho

    (Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Seoung-Yoen Kim

    (Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Min-Jung Kim

    (Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Jin-Woo Shim

    (Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Sang-Soo Park

    (Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, Korea)

  • Kyung-Ran Kim

    (National Institute of Agricultural Sciences, Rural Development Administration, Jeonju-si 54875, Korea)

  • Min-Tae Seo

    (National Institute of Agricultural Sciences, Rural Development Administration, Jeonju-si 54875, Korea)

  • Hye-Seon Chae

    (National Institute of Agricultural Sciences, Rural Development Administration, Jeonju-si 54875, Korea)

  • Hyun-Ho Shim

    (Department of Industrial Engineering, Sungkyunkwan University, Suwon 16419, Korea)

Abstract

The aim of this study was to determine the muscle load reduction of the upper extremities and lower extremities associated with wearing an exoskeleton, based on analyses of muscle activity (electromyography: EMG) and the AnyBody Modeling System (AMS). Twenty healthy males in their twenties participated in this study, performing bolting tasks at two working heights (60 and 85 cm). The muscle activities of the upper trapezius (UT), middle deltoid (MD), triceps brachii (TB), biceps brachii (BB), erector spinae (ES), biceps femoris (BF), rectus femoris (RF), and tibialis anterior (TA) were measured by EMG and estimated by AMS, respectively. When working at the 60 cm height with the exoskeleton, the lower extremity muscle (BF, RF, TA) activities of EMG and AMS decreased. When working at the 85 cm height, the lower extremity muscle activity of EMG decreased except for TA, and those of AMS decreased except for RF. The muscle activities analyzed by the two methods showed similar patterns, in that wearing the exoskeleton reduced loads of the lower extremity muscles. Therefore, wearing an exoskeleton can be recommended to prevent an injury. As the results of the two methods show a similar tendency, the AMS can be used.

Suggested Citation

  • Yong-Ku Kong & Kyeong-Hee Choi & Min-Uk Cho & Seoung-Yoen Kim & Min-Jung Kim & Jin-Woo Shim & Sang-Soo Park & Kyung-Ran Kim & Min-Tae Seo & Hye-Seon Chae & Hyun-Ho Shim, 2022. "Ergonomic Assessment of a Lower-Limb Exoskeleton through Electromyography and Anybody Modeling System," IJERPH, MDPI, vol. 19(13), pages 1-15, July.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:13:p:8088-:d:853691
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    References listed on IDEAS

    as
    1. Yong-Ku Kong & Chae-Won Park & Min-Uk Cho & Seoung-Yeon Kim & Min-Jung Kim & Dong Jin Hyun & Kihyeon Bae & Jong Kyu Choi & Sang Min Ko & Kyeong-Hee Choi, 2021. "Guidelines for Working Heights of the Lower-Limb Exoskeleton (CEX) Based on Ergonomic Evaluations," IJERPH, MDPI, vol. 18(10), pages 1-12, May.
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    Cited by:

    1. Davide Gattamelata & Mario Fargnoli, 2022. "Development of a New Procedure for Evaluating Working Postures: An Application in a Manufacturing Company," IJERPH, MDPI, vol. 19(22), pages 1-20, November.

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    1. Davide Gattamelata & Mario Fargnoli, 2022. "Development of a New Procedure for Evaluating Working Postures: An Application in a Manufacturing Company," IJERPH, MDPI, vol. 19(22), pages 1-20, November.

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